Work shoes with usage statistics system RFID chip

Abstract

The utility model discloses a kind of work shoes with use condition statistics system RFID chip, belong to shoe and clothing use condition statistics technical field, including upper, sole and tongue, and the accommodating cavity prefabricated inside the tongue is fixedly installed with resistant type RFID label assembly;The RFID label assembly includes substrate, radio frequency identification chip and anti-interference antenna carried on substrate and the protective packaging structure wrapped in outermost layer;The protective packaging structure includes the hard shell close to chip and the epoxy resin drop glue layer covering overall assembly;Radio frequency identification chip is integrated with nonvolatile memory inside, and the physical storage space of memory is divided into multiple independent hardware address segments.The utility model provides a kind of work shoes, can integrate RFID assembly in shoe body structure depth, realize reliable physical accompanying and state record to work shoes full life cycle by the anti harsh environment design of hardware level.

Description

Technical Field

[0001] This utility model relates to the field of footwear and apparel usage statistics technology, and in particular to a work shoe with an RFID chip for a usage statistics system. Background Technology

[0002] Work shoes are critical personal protective equipment in high-cleanliness industries such as medical and health, microelectronics manufacturing, biopharmaceuticals and nuclear industry. Their use and management must meet special and strict requirements. In order to prevent cross-infection or particulate contamination, these industries require work shoes to undergo strict cleaning and disinfection after each use. This process usually includes industrial-grade centrifugal washing, soaking in strong acid or strong alkali disinfectant, and high-temperature and high-pressure sterilization and drying at 121°C or higher.

[0003] In terms of managing the lifespan of work shoes, traditional methods mainly rely on manual record keeping or visual inspection of wear and tear. However, manual record keeping is inefficient and prone to errors, and visual inspection methods lack quantitative standards and cannot ensure the accuracy of aseptic control. With the widespread application of radio frequency identification (RFID) technology, the industry is trying to use RFID tags for the intelligent management of work shoes.

[0004] However, existing general-purpose RFID technology reveals significant shortcomings in the specific application scenarios of high-cleanliness industries: First, ordinary RFID tags typically use self-adhesive film or laminated card structures, and their encapsulation materials are prone to aging, cracking, or deformation after repeated high-temperature and high-pressure sterilization and chemical solvent immersion. This loss leads to the failure of chip circuits due to water ingress short circuits or broken connection points.

[0005] Secondly, existing labels are mostly fixed to the surface of the shoe by pasting or simple embedding. However, under the strong mechanical centrifugation and agitation of industrial washing equipment, the labels are easy to fall off, resulting in asset loss.

[0006] Furthermore, current technology typically associates tag IDs with usage counts through backend database software. If the network is interrupted or the database fails, the field equipment cannot obtain the status information of the work shoes in real time, thus affecting management efficiency and accuracy. Utility Model Content

[0007] The purpose of this invention is to provide a work shoe that can deeply integrate RFID components into the shoe structure, and achieve reliable physical accompaniment and status recording throughout the entire life cycle of the work shoe through hardware-level design to withstand harsh environments.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a work shoe with an RFID chip for a usage statistics system, comprising an upper, a sole, and a tongue, wherein a durable RFID tag assembly is fixedly installed in a pre-fabricated cavity inside the tongue; The RFID tag assembly includes a substrate layer, a radio frequency identification chip and an anti-interference antenna mounted on the substrate layer, and a protective encapsulation structure wrapped in the outermost layer. The protective encapsulation structure includes a rigid outer shell that is in close contact with the chip and an epoxy resin epoxy layer that covers the entire component. The radio frequency identification chip integrates a non-volatile memory. The physical storage space of the memory is divided into multiple independent hardware address segments, including address segments A, B, and C for storing fixed data, and address segment D for physically recording the number of level flips.

[0009] As a further description of the above technical solution: the accommodating cavity is a sandwich structure located between the fabric layers inside the shoe tongue, and the opening of the sandwich is provided with a Velcro closure structure.

[0010] As a further description of the above technical solution: the substrate layer is made of high-temperature resistant PET material or flexible PCB board, the anti-interference antenna is a metal dipole antenna or helical antenna etched on the surface of the substrate layer, and the anti-interference antenna is electrically connected to the radio frequency identification chip.

[0011] As a further description of the above technical solution: the rigid shell is injection molded from polyphenylene sulfide material, and the epoxy resin epoxy layer fills the joint gap of the rigid shell.

[0012] As a further description of the above technical solution: the radio frequency identification chip is a passive chip that operates in the ultra-high frequency band. It is configured to activate the internal circuitry by the induced current generated by the anti-interference antenna when it is within the radio frequency field range of an external reading and writing device.

[0013] As a further description of the above technical solution: the physical mapping relationship of the hardware address segments of the non-volatile memory is configured as follows: Address segment A corresponds to bits 1 to 16 in the memory, and is used to permanently store binary data representing the production date; Address segment B corresponds to bits 17 to 24 in the memory, which are used to store binary data representing the work shoe size. The address segment C corresponds to bits 25 to 64 in the memory, which is used to store binary data representing the unique serial number of the work shoes.

[0014] As a further description of the above technical solution: the address segment D corresponds to the 65th to 80th bits in the memory, and this address segment is constructed as a rewritable counter storage unit; The counter storage unit is designed to change the potential state of its internal storage unit when it receives a specific external physical write pulse signal, so as to increment the binary value stored in the target address segment by one, thereby realizing the hardware-level recording of the cumulative number of times the work shoes are used.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. A dedicated physical cavity is prefabricated, using the fabric layer inside the shoe tongue to provide cushioning protection, and is physically sealed with Velcro or high-strength stitching. Compared with traditional surface adhesive methods, this structure can effectively prevent the label from shifting or falling off during vigorous exercise or centrifugal drying, thereby ensuring that the electronic tag maintains physical consistency with the shoe body.

[0016] 2. By using the physical address segment of the non-volatile memory inside the RFID chip as a hardware counter, the internal level state of the chip can be directly rewritten by an external pulse signal to record the number of uses. Even in an offline environment without network or backend database support, the chip's potential value can be directly read by the reading and writing device to determine whether it should be scrapped, which significantly improves on-site management efficiency. Attached Figure Description

[0017] Figure 1 A schematic diagram of the work shoe of this utility model is shown; Figure 2 A cross-sectional view of the tongue of this invention is shown; Figure 3 A cross-sectional view of the RFID tag assembly of this utility model is shown; Figure 4 A schematic diagram of the non-volatile memory built into the radio frequency identification chip of this utility model is shown.

[0018] Legend: 10. Upper; 11. Sole; 12. Tongue; 121. Receptive cavity; 13. Substrate layer; 14. Radio frequency identification chip; 15. Anti-interference antenna; 16. Rigid shell; 17. Epoxy resin epoxy layer; 20. Address segment A; 21. Address segment B; 22. Address segment C; 23. Address segment D. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a work shoe with an RFID chip for a usage statistics system, including an upper 10, a sole 11, and a tongue 12.

[0021] The upper 10 is connected to the sole 11 to form the main structural space for accommodating the foot, while the tongue 12 is located at the front opening of the upper 10. These components together constitute the basic support structure of the work shoe.

[0022] In order to achieve the integrated design of electronic tag and shoe body, a receiving cavity 121 is prefabricated inside the shoe tongue 12. The receiving cavity 121 is not a simple surface bonding area, but a physical sandwich structure composed of multiple layers of materials.

[0023] In a preferred design, the accommodating cavity 121 is designed as an openable sandwich structure and is sealed by Velcro. This design facilitates physical replacement of the chip when it is damaged, and also relies on the clamping force of the Velcro to effectively prevent the chip from shifting during violent movements.

[0024] In another design, to achieve better sealing and tamper resistance, the accommodating cavity 121 is completely sealed with high-strength stitching to form a closed sandwich structure, thereby permanently fixing the RFID tag assembly between the fabric layers of the shoe tongue 12.

[0025] The RFID tag assembly, as a core hardware component, is installed in the accommodating cavity 121. This assembly adopts a multi-layer hardware stacking structure, which is different from ordinary flexible sticker labels. It includes a substrate layer 13, a radio frequency identification chip 14, and a protective encapsulation layer.

[0026] The substrate layer 13 serves as the bottom support and is made of high-temperature resistant PET or flexible PCB material, possessing excellent thermal stability and mechanical toughness. The radio frequency identification chip 14 and the anti-interference antenna 15 are mounted on the substrate layer 13, and the anti-interference antenna 15 is electrically connected to the radio frequency identification chip 14.

[0027] The radio frequency identification chip 14 is a passive chip that operates in the ultra-high frequency band. It is small in size and does not require a battery.

[0028] The anti-interference antenna 15 adopts a dipole antenna or helical antenna design and is attached to the surface of the substrate layer 13 by etching process.

[0029] To address the durability challenges in medical and industrial disinfection environments, the RFID tag assembly features a dual-protective encapsulation layer. A rigid polyphenylene sulfide shell 16 encases the chip, and the PPS material has extremely high heat resistance (withstanding temperatures above 200°C) and chemical corrosion resistance, effectively resisting the erosion of strong acid and alkali disinfectants. An epoxy resin epoxy layer 17 covers the rigid shell 16, utilizing the density of the cured epoxy resin to form a fully sealed physical barrier.

[0030] RFID tag components record data through hardware-level storage unit planning, avoiding reliance on logical operations from external software systems.

[0031] The RFID chip 14 has a built-in non-volatile memory, such as EEPROM, and its physical storage space is divided into four independent address segments by hardware logic, namely address segment A20, address segment B21, address segment C22 and address segment D23.

[0032] The specific physical mapping relationship is as follows: Address segment A20 (Bits 1-16): This storage unit is permanently written with the binary code corresponding to the "production date". The high-order bits are used to define the year, and the low-order bits define the month and day.

[0033] Address segment B21 (Bits 17-24): This storage unit stores the binary code corresponding to the "size", which can cover all standard shoe sizes.

[0034] Address segment C22 (Bits 25-64): This storage unit stores the binary code of the "Unique Serial Number (UID)," which serves as the hardware identification of the work shoe and is tamper-proof.

[0035] Address segment D23 (Bits 65-80): This memory area is a rewritable counter area, designed in variable potential mode, used to record the lifespan of work shoes.

[0036] Address segment D23 consists of 16 physical storage bits and adopts an EEPROM architecture floating gate transistor array. When the anti-interference antenna 15 of the external read / write device transmits to the inside of the chip, the induced voltage is boosted by the voltage multiplier circuit inside the chip, forming a high voltage that can drive the floating gate transistor to generate the quantum tunneling effect.

[0037] In this process, the floating gate layer captures or releases electrons, thereby changing the on or off state of the physical storage bit in the circuit. Each state flip represents a successful usage record. This data recording method based on physical charge injection and capture is fundamentally different from the software operation in traditional computer programs. It belongs to the physical change process of the microelectronic circuit structure inside the chip and realizes the construction of statistical logic at the hardware bottom layer.

[0038] When the work shoe approaches external hardware with RF scanning capabilities, the external hardware emits a continuous wave signal at a specific frequency to activate the RFID chip 14 and sends a query command containing specific address vector information. This query command directly locates the physical base address of the chip's internal non-volatile memory at the hardware level. Subsequently, the external hardware uses an RF beam to lock the physical bits 1 to 64 corresponding to address segments A20 to C22 of the memory. The logic circuits inside the chip, based on the command level, cause the floating gate transistor states in the aforementioned address segments to be fed back to the external space via anti-interference antenna 15 in the form of backscatter modulation. Finally, the high and low level signals received by the external hardware are parsed and mapped to the work shoe's "production date," "size," and "unique serial number," enabling the direct extraction of raw physical data from the work shoe's physical hardware structure without relying on an external database.

[0039] The query for the cumulative number of uses of work shoes is achieved by scanning the potential status of address segment D23. Specifically, external hardware sends a "status scan" pulse to a specific physical region (Bits 65-80) within the chip. Address segment D23 serves as a counter storage unit, and the conduction status of its transistor array represents the current value in binary form. When the external scan pulse triggers this storage unit, the internal circuitry of the chip converts the charge distribution state within the region into a digital signal and outputs it as a pulse sequence. Based on the feedback binary value, when the value stored in address segment D23 reaches a preset physical limit, the external hardware will trigger a red LED display or a physical alarm buzzer.

[0040] The operation of RFID tag components is based on physical-level electromagnetic interactions: The RFID tag components embedded in work shoes are usually in a dormant state. When the work shoes are placed in the counting channel of an industrial washing machine or the reading and writing area of ​​a medical disinfection environment, the tag components enter the radio frequency field range established by the external reading and writing device.

[0041] The anti-interference antenna 15 uses the principle of electromagnetic induction or electromagnetic backscattering coupling to obtain energy from the spatial magnetic field to generate an induced current, thereby activating the internal circuit of the radio frequency identification chip 14 and putting it into working state.

[0042] The reader sends a specific physical pulse signal to the chip. The chip responds to the signal and reflects the potential states in address segments A, B, and C back to the reader via the antenna, thus completing the information reading process.

[0043] During the counting operation, the reader sends a specific "write" pulse signal to lock the address segment D23. This signal drives the internal charge pump circuit of the chip, directly changing the potential state of the floating gate transistor in the address segment D23, thereby increasing the stored binary value by 1 at the hardware level. The data update process is entirely implemented in the chip hardware inside the shoe, and data carrying can be completed without relying on a background database.

[0044] When work shoes undergo high-temperature and high-pressure sterilization or chemical soaking and cleaning, the polyphenylene sulfide rigid shell 16 and the epoxy resin epoxy layer 17 effectively block the direct damage of external water molecules and heat to the internal IC chip solder joints due to their physical heat insulation and hydrophobic properties.

[0045] This physical isolation mechanism ensures that the internal circuit connection points of the chip will not break due to thermal expansion and contraction, nor will they be short-circuited due to moisture infiltration, thus ensuring that the hardware structure of the work shoe maintains stable electrical performance throughout its entire life cycle and can continuously respond to radio frequency signal excitation.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A work shoe with an RFID chip for a usage statistics system, characterized in that, The shoe includes an upper (10), a sole (11), and a tongue (12), wherein a durable RFID tag assembly is fixedly installed in a pre-fabricated cavity (121) inside the tongue (12); The RFID tag assembly includes a substrate layer (13), a radio frequency identification chip (14) carried on the substrate layer (13) and an anti-interference antenna (15), and a protective encapsulation structure wrapped in the outermost layer; The protective encapsulation structure includes a rigid shell (16) that is in close contact with the chip and an epoxy resin epoxy layer (17) that covers the entire assembly. The radio frequency identification chip (14) integrates a non-volatile memory. The physical storage space of the memory is divided into multiple independent hardware address segments, including address segment A (20), address segment B (21), and address segment C (22) for storing fixed data, and address segment D (23) for physically recording the number of level flips.

2. The work shoe with an RFID chip for usage statistics system according to claim 1, characterized in that, The accommodating cavity (121) is constructed as a sandwich structure located between fabric layers inside the shoe tongue (12), and the opening of the sandwich is provided with a Velcro closure structure.

3. A work shoe with an RFID chip for a usage statistics system according to claim 1, characterized in that, The substrate layer (13) is made of high-temperature resistant PET material or flexible PCB board. The anti-interference antenna (15) is a metal dipole antenna or helical antenna etched on the surface of the substrate layer (13). The anti-interference antenna (15) is electrically connected to the radio frequency identification chip (14).

4. A work shoe with an RFID chip for a usage statistics system according to claim 1, characterized in that, The rigid shell (16) is injection molded from polyphenylene sulfide material, and the epoxy resin drip layer (17) fills the joint gap of the rigid shell (16).

5. A work shoe with an RFID chip for a usage statistics system according to claim 1, characterized in that, The radio frequency identification chip (14) is a passive chip that operates in the ultra-high frequency band. It is configured to activate the internal circuit by the induced current generated by the anti-interference antenna (15) when it is within the radio frequency field range of the external reading and writing device.

6. A work shoe with an RFID chip for a usage statistics system according to claim 1, characterized in that, The physical mapping relationship of the hardware address segments of the non-volatile memory is configured as follows: The address segment A (20) corresponds to bits 1 to 16 in the memory and is used to store binary data representing the production date. The address segment B (21) corresponds to the 17th to 24th bits in the memory, which are used to store binary data representing the size of the work shoes. The address segment C (22) corresponds to bits 25 to 64 in the memory and is used to store binary data representing the unique serial number of the work shoes.

7. A work shoe with an RFID chip for a usage statistics system according to claim 1, characterized in that, The address segment D (23) corresponds to the 65th to 80th bits in the memory, and this address segment is constructed as a rewritable counter storage unit; The counter storage unit is designed to change the potential state of its internal storage unit when it receives a specific external physical write pulse signal, so as to increment the binary value stored in the target address segment by one, thereby realizing the hardware-level recording of the cumulative number of times the work shoes are used.

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